Water Damage Troubleshooting - working with errors

Son tipped water over the computer and kept using it, I don't know how long the water was on the computer before I shut it down. Sucked the water out of the keyboard with my mouth (:-0) and dried the surface water with a cloth. Closed it up, took it home, opened it up again... it came on so I rebooted it... It didn't start.

Next day took it to a shop, it wasn't turning on. Got myself a replacement computer.

Pulled the macbook pro apart, left it 2 weeks to dry out.

Put it all back together.

It boots into safe mode, keyboard doesn't work because the password is always wrong. Plugged in a USB keyboard and can log into computer. Screen has a little bit of a wiggle across the middle, but otherwise seems to work.

So is the keyboard the only problem or do I have a logic board problem too? If it was one or the other I would replace the offending item. If it is both I will try to sell the computer for parts! Can someone help me with the troubleshooting? At the moment the computer is in pieces again.